PHP design mode--decoration mode

// Mobile Package Fee interface Abstract class iphonepackpagefee{      protectedabstractfunction  spendfee ();        Public $Fee ;}

 //  basic consumption   Monthfee extends   iphonepackpagefee{ public  function  __construct ( $fee  ) {  $this ->fee= $fee   public  function   Spendfee () { echo  ("Base package Fee:". ->fee);     echo  ("

Decorative base class:

// Decoration class class extends iphonepackpagefee{       private  $exFee;        function $exfee )    {        $this->exfee=$exfee;    }      Public  function Spendfee ()    {        $this->exfee->spendfee ();    }}

classMobileflowextendsdecoratorservice{function__construct (Decoratorservice$exService,$fee) {Parent:: __construct ($exService); $this->fee=$fee; }     Public functionSpendfee () {$this-Spendflow (); Parent::Spendfee (); }    Private functionSpendflow () {Echo("Traffic charges:".)$this-Fee); Echo("<br/>"); }}

Call:

Echo ("PHP decoration mode:");         Echo (");         $monthfee=new monthfee (+);         $decorator=new decoratorservice ($monthfee);         $flow=new mobileflow ($decorator,N);         $flow->spendfee ();

PHP design mode--decoration mode